Method and circuit arrangement for load modulation in a combination comprised of a transmitting and a receiving oscillator circuit
AssigneeATMEL Germany GmbH
InventorsMartin Berhorst, Peter Schneider
Life of this patent
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Abstract
A method and circuit arrangement is provided for load modulation in a receiving oscillator circuit, which can be mutually coupled with a transmitting oscillator circuit, having at least one inductance, at least one capacitance, and at least one controllable impedance. The controllable impedance can have at least one depletion layer element and at least one ohmic resistance.
Claims15
A method for load modulation in a system comprising a transmitting oscillator circuit and a receiving oscillator circuit, the method comprising:
- modulating a voltage in the transmitting oscillator circuit by retroaction of a voltage alteration in the receiving oscillator circuit, wherein the receiving oscillator circuit comprises an inductor;
- and
- controllably changing a load modulation of an impedance of the receiving oscillator circuit that includes at least two depletion layer elements and at least one ohmic resistance,
- wherein at least one of the at least two depletion layer elements includes a parallel connection of a Zener diode and a bypass element.
A circuit arrangement for load modulation in a receiving oscillator circuit, which can be mutually coupled with a transmitting oscillator circuit, the circuit arrangement comprising:
- at least one inductor;
- at least one capacitor;
- and
- a controllable impedance including at least two depletion layer elements and at least one ohmic resistance, wherein at least one of the at least two depletion layer elements includes a parallel connection of a Zener diode and a bypass element.
Dependencies are inferred from the claim text.